The only place green bean has leaked oil is the dust seal around the clutch arm. It just occasionally weeps through there, and it's very noticable cause it's oil on chrome. It's also just a drop of oil here or there, and definately not a liter. I also noticed when I removed my airbox (a while back) oil had built up due to the crankcase breather. Well the airbox is gone, and the new filter sits up higher which I think has stopped the oil from getting out.
I'll be replacing that dust seal this weekend due to other issues with valve train which are all my fault for dropping a metal pin down the chain opening. You guys have read it.
Other than that though, she's got 18,000 on her, and she's never leaked enough oil to compensate a top off. Something is wrong with a seal or something on you motor man. Good luck, and I would be a little wary about that dealer you're going to.
